Fuel System Pressure Release: Overview

Special Tool(s) 

Fuel Pressure Gauge 310-012 (JD209)

WARNING: Place the vehicle in a quarantined area and arrange "No Smoking/Petrol Fumes" signs about the vehicle.
WARNING: Before any work is carried out on the fuel system, ground the vehicle to earth and maintain the ground connection until the work is complete.
WARNING: Do not smoke or carry lighted tobacco or open flame of any type when working on or near any fuel related components. Highly flammable vapors are always present and may ignite. Failure to follow these instructions may result in personal injury.
WARNING: The fuel system remains pressurized for a long time after the ignition is switched off. The fuel pressure must be relieved before attempting any repairs. Failure to follow these instructions may result in personal injury.
WARNING: After carrying out repairs, the fuel system must be checked visually for leaks. Failure to follow these instructions may result in personal injury.
WARNING: This procedure involves fuel handling. Be prepared for fuel spillage at all times and always observe fuel handling precautions. Failure to follow these instructions may result in personal injury.
WARNING: If taken internally do not induce vomiting, seek immediate medical attention. Failure to follow these instructions may result in personal injury.
WARNING: If fuel contacts the eyes, flush the eyes with cold water or eyewash solution and seek medical attention.
WARNING: Wash hands thoroughly after handling, as prolonged contact may cause irritation. Should irritation develop, seek medical attention.
1. Disconnect the battery ground cable.
2. Remove the fuel system pressure relief valve cap.
WARNING: Make sure the tap of the special tool is rotated fully clockwise before installing the special tool to the fuel system pressure relief valve. Failure to follow these instructions may result in personal injury.
3. Install the special tool to the fuel system pressure relief valve.
NOTE: When relieving the fuel system pressure, catch any displaced fuel in a suitable container.
4. Relieve the fuel system pressure.
   • Rotate the tap of the special tool fully counterclockwise.
5. Remove the special tool from the fuel system pressure relief valve.
6. Install the fuel system pressure relief valve cap.
7. Connect the battery ground cable.